Chemistry (12th Edition)

by
Wilbraham

Chapter 19 - Acids, Bases, and Salts - 19 Assessment: 92

Answer

The equation will shift to the left
The equation will shift to the right.

Work Step by Step

Added strong acid facilitates the formation of hydroxide ions (shift the equation to the left) so excess H+ ions are absorbed.
Added strong base causes excess hydroxide ions to be in solution. The equilibrium will now shift to the right away from the production of hydroxide ions to relieve the stress on the system.